The number 5378
5378 is a composite number with 4 divisors. Its prime factorisation is 2 × 2689. Divisors (4): 1, 2, 2689, 5378.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 5378: a semiprime: 2 × 2689, the product of two primes.
- 2
5378 is composite. Its prime factorisation is
- 3
The divisors add up to 8070; without 5378 itself that is 2692, so 5378 is deficient (2692 is less than 5378). Euler's totient φ(5378) = 2688 numbers up to 5378 share no factor with it.
- 4
The digits of 5378 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 72 steps to reach 1.
LaTeX source of the formulas on this page
\[ 5378 = 2 \times 2689 \]
5378 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 8070 |
| Euler totient φ(n) | 2688 |
| Square | 28922884 |
| Cube | 155547270152 |
| Square root | 73.334848 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 72 |
| Scientific notation | 5.378 × |
5378 in other forms
| Form | Value |
|---|---|
| In words | five thousand three hundred and seventy-eight |
| Binary (base 2) | 1010100000010 |
| Octal (base 8) | 12402 |
| Hexadecimal (base 16) | 1502 |
| Base 3 | 21101012 |
| As time | 5378 seconds = 1 h 29 min 38 s |
Is 5378 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (5378 ÷ 2 = 2689) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 5378 a prime number?
No. 5378 = 2 × 2689, so it is divisible by 2.
What are the factors of 5378?
1, 2, 2689, 5378.
What is 5378 in binary?
1010100000010 (hexadecimal 1502, octal 12402).
What is the square root of 5378?
About 73.3348.
Is 5378 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 5378?
5378 is a semiprime: 2 × 2689, the product of two primes.